An alloy contains copper and tin in the ratio 3 : 2. If 250 gm of copper is added to this alloy then the copper in it becomes double the quantity of tin in it. What is the amount (in gm) of tin in the alloy?
Let say, copper and tin are 3k and 2k.
So, according to question,
3k+250=2×2k.
or, k=250.
So, tin was =500 gm.
D is correct choice.
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